Recently documented examples of neurogenesis, the production of new brain cells, include the brain growing in mice when placed in a stimulating environment or neurons increasing in canaries that learn new songs.
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小毯子1994 2015-05-14 09:50:18
when placed应该修饰mice,因此when placed修饰对象错误
ypheroin 2016-01-27 10:57:27
做题时我认为examples of neurogenesis include的应该是brain和neurons 而不能是growth 和 increasing。但是brain不能是the production of new brain cells(解释neurogenesis的同位语），所以brain作为examples of N 也不合适。 2、另外，这道题的另一个关键点是placed in a stimulating environment 的逻辑主语能不能清楚的指向mice。A选项就存在指代brain的歧义。
cocowu 2014-07-22 15:25:57
And the other thing wrong with A, B, C and D is "when placed in a stimulating environment" - it sounds like they are referring only to the time that the mice are in the stimulating environment - but the brain growth is permanent. It doesn't shrink back down once the mice are no longer in the stimulating environment. Ditto for the increase in neurons in the canaries.
停不下来的雕兄 2016-12-19 16:50:08
when不能做条件性状语，所以这里语义不对。
Monicca 2016-11-14 20:26:24
简洁有效：growing和increasing不合适，因为这两个动词都有自己的名词形式，即growth和increase 逻辑主语：when placed 的逻辑主语是examples，应该是mice
ColdSheldon 2016-10-06 15:36:09
当 1 主从句主语一致 2 从句谓语包含BE动词 时 从句可省略主语和be动词 e.g. When (you are crossing the road) crossing the road， you must be careful. He raise his hands as if （he was）to say something.
CelesteTOEFL 2016-09-18 18:23:29
拿掉growing in mice之后与拿掉所以语义有变化。判断方法同of+N+doing/done.
IvanGao 2016-07-01 16:03:33
growing 用 growth ， increasing 用increase
缙凡 2016-05-12 18:43:51
when 错误
Sparrow_7 2016-03-16 21:24:38
the brain…无法与the production of…平行；when修饰错误？
ypheroin 2015-12-16 12:23:59
1. the brain growing in mice 和 neurons increasing in canaries 与 production of new brain cells 不平行。 2. increasing 和 growing 不如 increase 和 growth 3. when placed的逻辑主语从句意上是mice，但从结构上，是examples。（这一条不同意）
ypheroin 2015-12-16 12:23:57
1. the brain growing in mice 和 neurons increasing in canaries 与 production of new brain cells 不平行。 2. increasing 和 growing 不如 increase 和 growth 3. when placed的逻辑主语从句意上是mice，但从结构上，是examples。（这一条不同意）
